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Title: Reduction of Simulation Times for High-Q Structures using the Resonance Equation

Simulating steady state performance of high quality factor (Q) resonant RF structures is computationally difficult for structures with sizes on the order of more than a few wavelengths because of the long times (on the order of ~ 0.1 ms) required to achieve steady state in comparison with maximum time step that can be used in the simulation (typically, on the order of ~ 1 ps). This paper presents analytical and computational approaches that can be used to accelerate the simulation of the steady state performance of such structures. The basis of the proposed approach is the utilization of a larger amplitude signal at the beginning to achieve steady state earlier relative to the nominal input signal. Finally, the methodology for finding the necessary input signal is then discussed in detail, and the validity of the approach is evaluated.
Authors:
 [1] ;  [2] ;  [3]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Univ. of California, San Diego, CA (United States)
  2. Univ. of California, San Diego, CA (United States). Dept. of Mechanical and Aerospace Engineering
  3. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Publication Date:
Report Number(s):
LA-UR-15-27078
Journal ID: ISSN 1937-8726
Grant/Contract Number:
AC52-06NA25396
Type:
Accepted Manuscript
Journal Name:
Progress in Electromagnetics Research M
Additional Journal Information:
Journal Volume: 44; Journal ID: ISSN 1937-8726
Publisher:
EMW Publishing
Research Org:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; Accelerator Design, Technology, and Operations
OSTI Identifier:
1334122